Fitting / Refilling Instructions LC-223 Large CISS Cartridges for Brother DCP-J4120DW, DCP-J562DW, MFC-J4420DW, MFC-J4620DW, MFC-J480DW, MFC-J5320DW, MFC-J5620DW, MFC-J5620DW, MFC-J5620DW, MFC-5625DW, MFC-5720DW, MFC-J680DW, MFC-J880DW printers. The larger refillable cartridges are longer, making them protrude from the front of the printer. This causes a problem because the cartridge door cannot be closed, and the Brother printer will not allow you to continue if the door is open! To solve this problem we must push the provided hook into the door sensor. In many instances the door must come off (Please note on some models this is not necessary). To remove the cartridge...